10. The figure shows two loudspeakers (A) and (B), and a point (C) where a listener is positioned. The speakers vibrate out of phase and are playing a 63.0 Hz tone. The speed of sound is 342 m/s. The listener at point (C) hears the third destructive interference (not counting the point at infinity) at a distance 4.00 m as measured from speaker (A). What is the separation (d) between the two speakers? dbg70 dbg70 dbg70 dbg70 dbg7 A d dbg70 dbg dbg70 dbg70 dbg70 dbg70 bg70 dbg70